Oracle Visual Builder: Applications That Outlive Their First Release · Module 6 · Connecting to Fusion
Lab briefing · Connect, over-fetch, then fix it
Lesson 67 of 176 · 3 min
Build a working Fusion connection DELIBERATELY BADLY, MEASURE WHAT IT COSTS in the network tab, then NARROW IT AND MEASURE AGAIN. Lesson 5 asked you to take narrowing on faith. This lab replaces the faith with two numbers you produced yourself, which is the only version of this argument anybody remembers. BUILD IT BADLY FIRST, AND DO IT HONESTLY. A list endpoint with no filter, no field selection and no page size. That is not a strawman — it is the call the tool helps you make and the one that appears in most first applications, because it works. MEASURE THREE THINGS IN THE NETWORK TAB: THE RESPONSE SIZE, THE TIME, AND THE NUMBER OF ROWS. Write them down. Then open the response and count the attributes on one row against the attributes your page displays — that ratio is usually the most persuasive figure of the whole exercise. NOW…
The full lesson is part of the course
The video, the complete written lesson and the module quiz are included in Oracle Visual Builder: Applications That Outlive Their First Release, with a certificate on completion and a fourteen-day refund window.
In this module: Module 6 · Connecting to Fusion
- 1What a service connection is
- 2Creating one against a Fusion REST APIFree preview
- 3Authentication, and whose identity is used
- 4Why a shared service account is usually wrong
- 5Query parameters, filtering and fields
- 6Pagination, properly
- 7Writing back to Fusion
- 8When the shape changes underneath you
- 9Calling an OIC integration instead
- 10Handling a service that is down
- 11CORS and the errors it produces
- 12What breaks: four connection failures
- 13Lab briefing · Connect, over-fetch, then fix it